# VS vs KSS

The clearest difference is update cadence: VS at every 5 months against KSS's every 15 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

VS ships an update every 5 months, KSS every 15 months. The most recent releases landed on September 25, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | VS | KSS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 15 months |
| Size | 21 MB | 24 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [VSOFT TECHNOLOGY DEVELOPMENT JOINT STOCK COMPANY](https://appshunter.io/developer/1299588397) | [Minh Thang Tran](https://appshunter.io/developer/1610127589) |

## What reviewers say

### VS

[App page](https://appshunter.io/ios/app/vs-einvoice/id1664370191)

**Features:** Vision Pro support

**In-app purchases:** none


### KSS

[App page](https://appshunter.io/ios/app/kss/id6478782598)

**In-app purchases:** none


## Frequently asked questions

### Is VS free?

VS is free to download, with no in-app purchases.

### Is KSS free?

KSS is free to download, with no in-app purchases.

### Do VS or KSS have ads?

Neither VS nor KSS shows ads.

### Which is updated more often, VS or KSS?

VS ships an update every 5 months, and KSS every 15 months. Most recently, VS was updated on September 25, 2026 and KSS on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*